I have a Random 300 cell cat on what otherwise should be a 400ish whp setup. I'm wondering whether it would be worth switching to a 100 cell cat. Has anyone compared them? Thx.

 

I've never found dyno results but from what I have read and heard the Random cats are pretty restrictive and don't flow all that great. IIRC they are the "mesh" substrate type and not the "cell" kind, so this makes them particularly respreictive in comparison. On the other hand, the 100cel cats that MilSpec sells have been proven to perform very well, so I do thinl you would gain some power over a Random. If any of this is incorrect I apologize and please correct me.